

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>功能演示一 - 上传组件</title>
        <meta name="renderer" content="webkit">
        <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
        <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=0">
        <link rel="stylesheet" href="../../../layui/layui/css/layui.css" media="all">
        <link rel="stylesheet" href="../../../layui/style/admin.css" media="all">
    </head>
    <body>

        <style>
            .layui-upload-img{width: 92px; height: 92px; margin: 0 10px 10px 0;}
        </style>

        <div class="layui-card layadmin-header">
            <div class="layui-breadcrumb" lay-filter="breadcrumb">
                <a lay-href="">主页</a>
                <a><cite>组件</cite></a>
                <a><cite>上传组件</cite></a>
                <a><cite>功能演示一</cite></a>
            </div>
        </div>

        <div class="layui-fluid">
            <div class="layui-row layui-col-space15">
                <div class="layui-col-md12">
                    <div class="layui-card">
                        <div class="layui-card-header">普通图片上传</div>
                        <div class="layui-card-body">
                            <div class="layui-upload">
                                <button type="button" class="layui-btn" id="test-upload-normal">上传图片</button>
                                <div class="layui-upload-list">
                                    <img class="layui-upload-img" id="test-upload-normal-img">
                                    <p id="test-upload-demoText"></p>
                                </div>
                            </div> 
                            <blockquote class="layui-elem-quote">
                                为节省服务器开销，以下示例均未配置真实上传接口，所以每次上传都会报提示：请求上传接口出现异常，这属于正常现象。 
                            </blockquote>   
                        </div>
                    </div>
                </div>

                <div class="layui-col-md12">
                    <div class="layui-card">
                        <div class="layui-card-header">上传多张图片</div>
                        <div class="layui-card-body">
                            <div class="layui-upload">
                                <button type="button" class="layui-btn" id="test-upload-more">多图片上传</button> 
                                <blockquote class="layui-elem-quote layui-quote-nm" style="margin-top: 10px;">
                                    预览图：
                                    <div class="layui-upload-list" id="test-upload-more-list"></div>
                                </blockquote>
                            </div>
                        </div>
                    </div>
                </div>

                <div class="layui-col-md12">
                    <div class="layui-card">
                        <div class="layui-card-header">指定允许上传的文件类型</div>
                        <div class="layui-card-body">
                            <button type="button" class="layui-btn" id="test-upload-type1"><i class="layui-icon"></i>上传文件</button>
                            <button type="button" class="layui-btn layui-btn-primary" id="test-upload-type2"><i class="layui-icon"></i>只允许压缩文件</button>
                            <button type="button" class="layui-btn" id="test-upload-type3"><i class="layui-icon"></i>上传视频</button>
                            <button type="button" class="layui-btn" id="test-upload-type4"><i class="layui-icon"></i>上传音频</button> 
                        </div>
                    </div>
                </div>

                <div class="layui-col-md12">
                    <div class="layui-card">
                        <div class="layui-card-header">设定文件大小限制</div>
                        <div class="layui-card-body">
                            <button type="button" class="layui-btn layui-btn-danger" id="test-upload-size">
                                <i class="layui-icon"></i>上传图片
                            </button>
                            <div class="layui-inline layui-word-aux">
                                这里以限制 60KB 为例
                            </div>
                        </div>
                    </div>
                </div>

                <div class="layui-col-md12">
                    <div class="layui-card">
                        <div class="layui-card-header">同时绑定多个元素，并将属性设定在元素上</div>
                        <div class="layui-card-body">
                            <button class="layui-btn test-upload-demoMore" lay-data="{url: '/a/'}">上传A</button>
                            <button class="layui-btn test-upload-demoMore" lay-data="{url: '/b/', size:5}">上传B</button>
                            <button class="layui-btn test-upload-demoMore" lay-data="{url: '/c/', accept: 'file',size:10}">上传C</button>
                        </div>
                    </div>
                </div>

            </div>
        </div>

        <script src="../../../layui/layui/layui.js"></script>  
        <script>
            layui.config({
                base: '../../../layuiadmin/' //静态资源所在路径
            }).extend({
                index: 'lib/index' //主入口模块
            }).use(['index', 'upload'], function () {
                var $ = layui.jquery
                        , upload = layui.upload;

                //普通图片上传
                var uploadInst = upload.render({
                    elem: '#test-upload-normal'
                    , url: '/upload/'
                    , before: function (obj) {
                        //预读本地文件示例，不支持ie8
                        obj.preview(function (index, file, result) {
                            $('#test-upload-normal-img').attr('src', result); //图片链接（base64）
                        });
                    }
                    , done: function (res) {
                        //如果上传失败
                        if (res.code > 0) {
                            return layer.msg('上传失败');
                        }
                        //上传成功
                    }
                    , error: function () {
                        //演示失败状态，并实现重传
                        var demoText = $('#test-upload-demoText');
                        demoText.html('<span style="color: #FF5722;">上传失败</span> <a class="layui-btn layui-btn-mini demo-reload">重试</a>');
                        demoText.find('.demo-reload').on('click', function () {
                            uploadInst.upload();
                        });
                    }
                });

                //多图片上传
                upload.render({
                    elem: '#test-upload-more'
                    , url: '/upload/'
                    , multiple: true
                    , before: function (obj) {
                        //预读本地文件示例，不支持ie8
                        obj.preview(function (index, file, result) {
                            $('#test-upload-more-list').append('<img src="' + result + '" alt="' + file.name + '" class="layui-upload-img">')
                        });
                    }
                    , done: function (res) {
                        //上传完毕
                    }
                });

                //指定允许上传的文件类型
                upload.render({
                    elem: '#test-upload-type1'
                    , url: '/upload/'
                    , accept: 'file' //普通文件
                    , done: function (res) {
                        console.log(res)
                    }
                });
                upload.render({//允许上传的文件后缀
                    elem: '#test-upload-type2'
                    , url: '/upload/'
                    , accept: 'file' //普通文件
                    , exts: 'zip|rar|7z' //只允许上传压缩文件
                    , done: function (res) {
                        console.log(res)
                    }
                });
                upload.render({
                    elem: '#test-upload-type3'
                    , url: '/upload/'
                    , accept: 'video' //视频
                    , done: function (res) {
                        console.log(res)
                    }
                });
                upload.render({
                    elem: '#test-upload-type4'
                    , url: '/upload/'
                    , accept: 'audio' //音频
                    , done: function (res) {
                        console.log(res)
                    }
                });

                //设定文件大小限制
                upload.render({
                    elem: '#test-upload-size'
                    , url: '/upload/'
                    , size: 60 //限制文件大小，单位 KB
                    , done: function (res) {
                        console.log(res)
                    }
                });

                //同时绑定多个元素，并将属性设定在元素上
                upload.render({
                    elem: '.test-upload-demoMore'
                    , before: function () {
                        layer.tips('接口地址：' + this.url, this.item, {tips: 1});
                    }
                    , done: function (res, index, upload) {
                        var item = this.item;
                        console.log(item); //获取当前触发上传的元素，layui 2.1.0 新增
                    }
                })

            });
        </script>
    </body>
</html>